Boron trioxide

[7] It has many important industrial applications, chiefly in ceramics as a flux for glazes and enamels and in the production of glasses.

The number of boroxol rings decays in the liquid state with increasing temperature.

[21] Boron trioxide is produced by treating borax with sulfuric acid in a fusion furnace.

At temperatures above 750 °C, the molten boron oxide layer separates out from sodium sulfate.

Containers can be passivated internally with a graphitized carbon layer obtained by thermal decomposition of acetylene.

Crystal structure of B2O3 [1]
Crystal structure of B 2 O 3 [ 1 ]
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 0: Will not burn. E.g. water Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code